Mosman Oil and Gas Limited (AIM: MSMN), the helium, hydrogen and hydrocarbon company, announces that its Annual Report and Accounts for the financial year ended 30 June 2025 have today been released and are available on the Company’s website at: www.mosmanoilandgas.com/investors

The Annual Report will also be sent to shareholders who have elected to receive hard copies.

Key Highlights

Carl Dumbrell, Executive Chairman of Mosman, commented: “FY25 marked a transformational year for Mosman as we repositioned the business squarely towards helium — a critical and high-value global resource. With Sagebrush validated by independent resource auditing and on track for seismic acquisition and flow testing in FY26, we are entering a period of significant value-driving activity. The divestment of non-core oil interests has sharpened our focus and positioned us to move decisively in this new phase. I am confident that Mosman now has the assets, team and strategy in place to unlock substantial shareholder value. On behalf of the Board, I thank shareholders for their continued support as we deliver on the exciting opportunities ahead.”

Additional Information
Copies of the Annual Report will be submitted to the National Storage Mechanism and will shortly be available for inspection at:
https://data.fca.org.uk/#/nsm/nationalstoragemechanism

Market Abuse Regulation (MAR) Disclosure

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 (‘MAR’) which has been incorporated into UK law by the European Union (Withdrawal) Act 2018. Upon the publication of this announcement via Regulatory Information Service (‘RIS’), this information is now considered to be in the public domain

Enquiries:

Mosman Oil & Gas Limited

Carl Dumbrell

Chairman

 

NOMAD and Joint Broker

SP Angel Corporate Finance LLP

Stuart Gledhill / Richard Hail / Adam Cowl

+44 (0) 20 3470 0470

Brand Communications

Alan Green

Tel: +44 (0) 7976 431608

Joint Broker

CMC Markets UK Plc

Douglas Crippen

+44 (0) 020 3003 8632

Updates on the Company’s activities are regularly posted on its website: www.mosmanoilandgas.com

Notes to editors

Mosman (AIM: MSMN) is a helium, hydrogen and hydrocarbon exploration, development, and production company with projects in the US and Australia. Mosman’s strategic objectives remain consistent: to identify opportunities which will provide operating cash flow and have development upside, in conjunction with progressing exploration. The Company has several projects in the US, in addition to royalty interests in Australia.

Link to view the Annual Report, Chairman’s Report and Financial Statements MSMN FY 2025 ANNUAL REPORT